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Old 12th May 2017, 05:47 PM   #21
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Originally Posted by bentoronto View Post
You've made the exceptional claim that your small sewer pipe sub is flat to nearly 20 Hz. So I'd like to hear how you measured that or is it just your intuitive impression?



B.


Sorry only just seen your post. After much research I came across DB Keale's method of extreme close miking a woofer which allows you to get accurate measurements up to about 300hz without interference from reflections because you are so close to the woofer.

I used a UMIK-1 approximately 1cm from the woofer to get the measurements.

Don't forget that I am using a fairly significant low shelf boost to get there - this is not the natural response of the enclosure!


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Old 12th May 2017, 10:03 PM   #22
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Quote:
Originally Posted by bentoronto View Post
You've made the exceptional claim that your small sewer pipe sub is flat to nearly 20 Hz. So I'd like to hear how you measured that or is it just your intuitive impression?

B.
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Old 13th May 2017, 12:06 AM   #23
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Location: Toronto and Delray Beach, FL
Thanks. Appreciate that you've provided complete details.

B.
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